A laser cutting machine for aluminum profile processing

Abstract

The present invention discloses a laser cutting machine for processing aluminum profiles, which relates to the technical field of laser cutting machines for processing aluminum tubes, and includes a grinding unit for grinding the cutting edge of the aluminum profile cut by a laser cutter, a driving unit for driving the grinding unit to rotate periodically, and an adjusting unit for adjusting the position of the grinding unit in coordination with the movement of the laser cutter. The present invention provides a torsion spring between a fixed plate and a laser cutting head, so that a shearing pin and the laser cutting head are elastically connected, achieving the effect of achieving the shearing pin moving along the same path as the laser cutting head, and a conical surface is provided on the outer wall of the shearing pin to cooperate with the elastic force released downward by a second spring on the shearing pin, so that the shearing pin is squeezed into the cutting seam of the aluminum profile, achieving the effect of performing laser cutting and grinding simultaneously, and the shearing pin on the top of the cutting waste is driven by the second spring to push the cutting waste downward, ensuring that the cutting waste is completely separated from the aluminum profile.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machines for processing aluminum tubes, and in particular to a laser cutting machine for processing aluminum profiles. Background Art

[0002] In the aluminum profile processing process, cutting is a key process. Common cutting methods include electric saw cutting, stamping cutting, plasma cutting and laser cutting. Among them, laser cutting, with its advantages of high efficiency, high precision and low energy consumption, is gradually replacing traditional cutting methods and becoming the mainstream choice for aluminum profile processing. The laser cutting machine for aluminum profile processing is a high-precision CNC equipment specially designed for cutting aluminum alloy profiles. It uses a high-energy laser beam to perform non-contact cutting of aluminum, with the characteristics of high efficiency, precision and flexibility. When laser cutting aluminum profiles, the aluminum profile is rotated by an electric clamp and then cut by the laser cutting mechanism. Due to the fast thermal conductivity and low melting point of aluminum, the laser cutting edge is prone to produce tiny welding slag and slag, which affects the product appearance and assembly accuracy. Manual polishing or special deslagging machines such as files and sandpaper are required. When manual polishing, the operator uses files and sandpaper to manually trim, which is inefficient and inconsistent. Special deslagging machines transfer the aluminum profiles to independent equipment for secondary processing after cutting, increasing production time and logistics costs.

[0003] Some laser cutting machines used for aluminum profile processing adopt an integrated grinding solution, that is, a rotating grinding wheel is installed on one side of the laser cutting head. After cutting is completed, the grinding wheel is ground twice along the same path. Cutting and grinding are performed in steps. The machine needs to repeat the cutting, which increases the processing time, and the laser cutting machine needs to be started and stopped frequently to drive the grinding wheel, which causes the mechanical parts to wear faster. Since the grinding wheel is fixed on one side of the laser cutting head, the fixed grinding wheel is difficult to cope with the changes in the welding slag height of aluminum materials of different thicknesses, which may cause over-grinding or missing grinding. When cutting aluminum profiles, due to the uneven thickness of the material, there may be uncut parts, and the waste material needs to be manually knocked off, which may cause the workpiece to shift and affect subsequent processing.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original laser cutting machine for aluminum profile processing. Summary of the Invention

[0005] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a laser cutting machine for aluminum profile processing, so as to solve the above-mentioned background technology that proposes that cutting and grinding are carried out in steps, the machine needs to repeat the tool path, which increases the processing time, and the laser cutting machine needs to be frequently started and stopped to drive the grinding wheel, resulting in accelerated wear of mechanical parts. Since the grinding wheel is fixed on one side of the laser cutting head, the fixed grinding wheel is difficult to cope with the changes in the welding slag height of aluminum materials of different thicknesses, which may cause over-grinding or under-grinding problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser cutting machine for processing aluminum profiles, comprising a cutting machine body and a laser cutter for cutting the aluminum profiles, a grinding unit for shearing the internal welding slag of the cut seam produced by the laser cutter when cutting the aluminum profiles, a driving unit for driving the grinding unit to perform periodic rotation, and an adjustment unit for coordinating the movement of the laser cutter to adapt the grinding unit to different curvatures of the cut seam and to self-center the grinding unit, wherein a torsion spring is provided between the adjustment unit and the laser cutter to achieve the same path movement for cutting and grinding;

[0007] The adjusting unit is also equipped with a plurality of fixing frames, and a second spring is provided between each fixing frame and the adjusting unit.

[0008] Preferably, the adjustment unit includes a pressing plate, which is fixedly connected to the outer wall of the cutter head of the laser cutter. The pressing plate is plugged into the sliding frame via a protrusion fixedly connected to one side of the pressing plate, and a plug-in slot is provided inside the sliding frame to be plugged into the protrusion fixed to the end of the pressing plate.

[0009] A fixed column is fixedly connected to the inside of the laser cutter base disc, and the fixed column passes through the sliding frame. One end of the sliding frame is located inside the laser cutter base disc and is slidably connected to the laser cutter. The sliding frame is provided with a sliding groove that is compatible with the fixed column.

[0010] Preferably, the driving unit includes a motor fixedly mounted on the top of the sliding frame, the bottom of the sliding frame is fixedly connected to a fixed plate through two connecting columns, a rotating shaft is rotatably connected between the two connecting columns, the output shaft of the motor and the surface of the rotating shaft are fixedly connected with synchronous wheels, a belt is movably connected between the two synchronous wheels, a plurality of cams with the same number as the fixed frame are evenly fixed on the outer wall of the rotating shaft, a plurality of lifting rods with the same number as the cams are vertically slidably connected to the fixed plate, the top of each lifting rod is fixedly connected to a lifting plate, and the outer wall of each lifting rod is fixedly connected to the fixed frame.

[0011] Preferably, the fixed frame is slidably connected to the surface of the lifting rod, and the fixed frame is located inside the fixed frame. A guide rod is connected through the inside of the fixed frame. The top end of the guide rod is fixedly connected to the upper surface of the fixed frame, and the bottom end of the guide rod is fixedly connected to the lower surface of the fixed frame.

[0012] Preferably, a first spring is provided between the fixing bracket and the fixing frame, the first spring is wound around the outer wall of the guide rod, one end of the first spring is fixed to the bottom end of the fixing bracket, and the other end of the first spring is fixed to the inner lower surface of the fixing frame.

[0013] Preferably, the grinding unit includes a shearing pin, which is movably connected to the lifting rod through a thread, and the outer wall of the shearing pin is evenly provided with grooves, the lower end of the shearing pin is conical and narrow at the bottom and wide at the top, and the lower end of the shearing pin is rotatably installed with a universal ball that slides along the surface of the aluminum profile, and the outer wall of the shearing pin is fixedly connected to a fixing ring, and the fixing ring is rotatably connected to the fixed frame.

[0014] Preferably, the fixing ring is fixed to the outer wall of the shear pin, and the outer wall of the fixing ring is provided with a limiting ring located inside the bottom end of the fixing frame, and the fixing ring is rotatably connected to the fixing frame.

[0015] Preferably, a second spring is wound around the outer wall of the lifting rod, one end of the second spring is fixed to the lower surface of the fixing plate, and the other end of the second spring is fixed to the upper surface of the fixing frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the laser cutter moves downward, the sliding frame is driven downward by the pressure plate, so that the fixed plate moves downward synchronously, and then the fixed frame is driven downward, so that the universal ball connected to the lower end of the shearing pin fits the upper surface of the aluminum profile, and the fixed plate and the laser cutting head are elastically connected by a torsion spring, so that the shearing pin moves in the same path as the laser cutting head. When the shearing pin moves to the initial cutting seam of the aluminum profile, since there are multiple shearing pins, the lower end of each shearing pin is a conical design with a narrow bottom and a wide top. As long as the conical surface of one of the shearing pins can contact the gap, the shearing pin will be forced to squeeze into the cutting seam of the aluminum profile when it is pressed downward by the second spring, and at the same time, its position in the gap is corrected, so as to achieve the effect of adaptively centering the shearing pin and synchronizing laser cutting and polishing, and when the cutting is completed, the shearing pin on the top of the cutting waste is driven by the second spring to push the cutting waste downward, ensuring that the cutting waste is completely separated from the aluminum profile.

[0018] When grinding the cutting seam, the motor drives the rotating shaft to rotate through the belt. The rotation of the rotating shaft causes the cam fixed to its outer wall to rotate, thereby driving the lifting rod to slide inside the fixed plate. Since the lifting rod and the shearing needle are threadedly connected, and the shearing needle is fixed inside the fixed frame through a fixing ring, and the fixing ring and the fixed frame are rotatably connected, when the lifting rod moves down, the shearing needle is driven to rotate forward, and when the lifting rod moves up, the shearing needle is driven to reverse through the reset cooperation of the first spring. During the rotation of the shearing needle, the groove on the shearing needle will contact the welding slag in the cutting seam of the aluminum profile. As the shearing needle rotates, the cutting edge design of the groove generates a shear force during rotation, which can effectively scrape off the welding slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 This is a structural diagram of the connection between the laser cutter and the sliding frame of the present invention.

[0021] Figure 3 This is a structural schematic diagram of the shear pin of the present invention sliding on the upper surface of the aluminum profile.

[0022] Figure 4 This is a structural schematic diagram of the shear pin of the present invention being located at the edge of laser cutting.

[0023] Figure 5 For the present invention Figure 4 A schematic enlarged diagram of the structure at point A.

[0024] Figure 6 This is a structural diagram of the connection between the fixing plate and the lifting rod of the present invention.

[0025] Figure 7 For the present invention Figure 6 Schematic enlargement of the structure at point B.

[0026] Figure 8 This is a structural diagram of the connection between the lifting rod and the lifting plate of the present invention.

[0027] Figure 9 This is a structural diagram of the connection between the lifting rod and the fixing frame of the present invention.

[0028] Figure 10 For the present invention Figure 9 Schematic enlargement of the structure at C.

[0029] In the figure: 1. Cutting machine body; 2. Laser cutter; 301. Pressing plate; 302. Fixed column; 303. Sliding frame; 304. Connecting slot; 401. Motor; 402. Belt; 403. Rotating shaft; 404. Cam; 405. Lifting plate; 406. Lifting rod; 407. Fixed frame; 408. Guide rod; 409. First spring; 5. Fixed plate; 6. Fixed frame; 7. Second spring; 801. Shearing needle; 802. Groove; 803. Universal ball; 804. Fixed ring; 9. Torsion spring. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10The present invention provides a technical solution: a laser cutting machine for processing aluminum profiles, comprising a cutting machine body 1 and a laser cutter 2 for cutting the aluminum profiles, a grinding unit for shearing the internal welding slag of the cutting seam produced by the laser cutter 2 when cutting the aluminum profiles, a driving unit for driving the grinding unit to rotate periodically, and an adjustment unit for coordinating the movement of the laser cutter 2 to adapt the grinding unit to different curvatures of the cutting seam and to self-adapt to the centering, a torsion spring 9 for achieving the same path movement for cutting and grinding is provided between the adjustment unit and the laser cutter 2;

[0032] The adjusting unit is also equipped with a plurality of fixing frames 6 , and a second spring 7 is provided between each fixing frame 6 and the adjusting unit.

[0033] In specific implementation, when using the laser cutting machine for processing aluminum profiles, the operator first accurately positions the aluminum profile to be processed in the processing area of the cutting machine body 1, and sets the cutting path parameters of the laser cutter 2 through the control panel. After the system is started, the laser cutter 2 is controlled to cut the aluminum profile. While the laser cutter 2 is cutting the aluminum profile, the elastic connection between the adjustment unit and the torsion spring 9 drives the polishing unit to move synchronously, so that the polishing unit always follows the cutting path of the laser cutter 2 to shear the welding slag inside the cutting seam. The second spring 7 between the fixed frame 6 and the adjustment unit provides downward pressure to ensure that the polishing unit is in close contact with the cutting edge. The driving unit drives the polishing unit to perform alternating forward and reverse movements to achieve synchronous de-slag treatment of the cutting edge, thereby completing the two processes of cutting and polishing in a single processing.

[0034] As a further embodiment of the present invention, the adjustment unit includes a pressure plate 301, which is fixedly connected to the outer wall of the cutter head of the laser cutter 2. The pressure plate 301 is plugged into the sliding frame 303 through a protrusion fixedly connected to one side of the pressure plate 301, and the sliding frame 303 has an internal insertion groove 304 for plugging with the protrusion fixed to the end of the pressure plate 301.

[0035] A fixed column 302 is fixedly connected to the inside of the base disc of the laser cutter 2. The fixed column 302 passes through the sliding frame 303, and one end of the sliding frame 303 is located inside the base disc of the laser cutter 2 and is slidably connected to the laser cutter 2. The sliding frame 303 is provided with a sliding groove that is compatible with the fixed column 302.

[0036] In the specific implementation, the pressure plate 301 fixed on the outer wall of the blade head of the laser cutter 2 is connected with the plug-in slot 304 of the sliding frame 303 through its protrusion, so that the pressure plate 301 can drive the sliding frame 303 to move vertically synchronously. At the same time, through the tension of the torsion spring 9 set between the laser cutter 2 and the fixed plate 5, the sliding frame 303 can move along the cutting path with the laser cutter 2, thereby realizing precise position adjustment of the grinding unit during the cutting process.

[0037] As a further embodiment of the present invention, the driving unit includes a motor 401 fixedly mounted on the top of the sliding frame 303, the bottom of the sliding frame 303 is fixedly connected to the fixed plate 5 through two connecting columns, a rotating shaft 403 is rotatably connected between the two connecting columns, the output shaft of the motor 401 and the surface of the rotating shaft 403 are fixedly connected with synchronous wheels, a belt 402 is movably connected between the two synchronous wheels, a plurality of cams 404 equal in number to the fixed frame 6 are evenly fixed on the outer wall of the rotating shaft 403, a plurality of lifting rods 406 equal in number to the cams 404 are vertically slidably connected to the fixed plate 5, the top of each lifting rod 406 is fixedly connected to a lifting plate 405, and the outer wall of each lifting rod 406 is fixedly connected to a fixed frame 407.

[0038] In the specific implementation, when the system starts the laser cutter 2 to cut the aluminum profile, the motor 401 is started, and the motor 401 drives the rotating shaft 403 to rotate through the belt 402, so that the multiple cams 404 fixed on its outer wall rotate synchronously. The rotational movement of the cam 404 drives the lifting plate 405 to move up and down, and then drives the lifting rod 406 to achieve periodic lifting and lowering, providing the required reciprocating driving power for the grinding unit.

[0039] As a further implementation scheme of the present invention, the fixed frame 6 is slidably connected to the surface of the lifting rod 406, and the fixed frame 407 is located inside the fixed frame 6. A guide rod 408 is connected to the inside of the fixed frame 407. The top end of the guide rod 408 is fixedly connected to the upper surface of the inside of the fixed frame 6, and the bottom end of the guide rod 408 is fixedly connected to the lower surface of the inside of the fixed frame 6.

[0040] In specific implementation, when the lifting rod 406 reciprocates up and down inside the fixed frame 6, the fixed frame 407 connected to it is precisely guided by the penetrating guide rod 408. Since the two ends of the guide rod 408 are respectively fixed on the upper and lower inner surfaces of the fixed frame 6, a stable guiding structure is formed to ensure that the lifting rod 406 and the fixed frame 407 can only move linearly along the axial direction of the guide rod 408, thereby providing a precise reciprocating motion trajectory for the grinding unit.

[0041] As a further implementation scheme of the present invention, a first spring 409 is arranged between the fixing bracket 407 and the fixing frame 6, the first spring 409 is wound around the outer wall of the guide rod 408, and one end of the first spring 409 is fixed to the bottom end of the fixing bracket 407, and the other end of the first spring 409 is fixed to the inner lower surface of the fixing frame 6.

[0042] In a specific implementation, the fixing frame 407 and the fixing frame 6 are elastically connected by a first spring 409 wrapped around the outer wall of the guide rod 408. The two ends of the first spring 409 are respectively fixed to the bottom end of the fixing frame 407 and the inner lower surface of the fixing frame 6. When the lifting rod 406 drives the fixing frame 407 to be pressed down, the first spring 409 is compressed to store energy. When the pressure is released, the first spring 409 rebounds to reset the fixing frame 407.

[0043] As a further implementation scheme of the present invention, the grinding unit includes a shearing needle 801, which is movably connected to the lifting rod 406 through a thread, and the outer wall of the shearing needle 801 is evenly provided with grooves 802, and the outer wall of the shearing needle 801 is provided with a conical surface, and the lower end of the shearing needle 801 is rotatably installed with a universal ball 803 that slides along the surface of the aluminum profile, and the outer wall of the shearing needle 801 is fixedly connected to a fixing ring 804, and the fixing ring 804 is rotatably connected to the fixed frame 6.

[0044] In the specific implementation, the shearing pin 801 threadedly connected to the lifting rod 406 realizes rotational motion under the drive of the lifting rod 406. When the shearing pin 801 moves on the surface of the aluminum profile, the universal ball 803 at the bottom end of the shearing pin 801 enables the shearing pin 801 to slide smoothly on the surface of the aluminum profile. At the same time, the position of the shearing pin 801 is limited by the fixing ring 804, which facilitates the shearing pin 801 to perform alternating forward and reverse motion to avoid debris accumulation, thereby improving the efficiency of welding slag removal, and utilizing the cutting edge design of the groove 802 to generate shear force during rotation to achieve efficient grinding.

[0045] As a further embodiment of the present invention, a fixed plate 5 is fixedly connected to the bottom of the sliding frame 303 , and the fixed plate 5 is penetrated by the lifting rod 406 , and the lifting rod 406 slides inside the fixed plate 5 .

[0046] In a specific implementation, a limiting ring is provided on the outer wall of the fixing ring 804 and the fixing ring 804 is rotatably connected to the fixing frame 6, so that the limiting ring is embedded in the bottom end of the fixing frame 6, thereby limiting the axial displacement of the shearing needle 801, while allowing the shearing needle 801 to rotate freely in the fixing frame 6, ensuring that the shearing needle 801 can perform stable rotation grinding in the cutting seam.

[0047] As a further embodiment of the present invention, a second spring 7 is wound around the outer wall of the lifting rod 406 , and one end of the second spring 7 is fixed to the lower surface of the fixing plate 5 , and the other end of the second spring 7 is fixed to the upper surface of the fixing frame 6 .

[0048] In the specific implementation, the two ends of the second spring 7 are respectively fixed on the lower surface of the fixed plate 5 and the upper surface of the fixed frame 6. When the bottom end of the shearing needle 801 contacts the upper surface of the aluminum profile, the fixed frame 6 stops moving downward. Since the fixed plate 5 continues to move downward, the second spring 7 between the fixed plate 5 and the fixed frame 6 is compressed to store energy. When encountering a cutting seam, the rebound of the second spring 7 pushes the fixed frame 6 to continue to move downward, making it convenient to drive the shearing needle 801 into the cutting seam, thereby providing the shearing needle 801 with stable downward pressure and centering function, ensuring that the grinding process is always synchronized with the cutting path.

[0049] Working Principle: When using this aluminum profile laser cutting machine, the operator first accurately positions the aluminum profile to be processed in the processing area of the cutting machine body 1 and sets the cutting path parameters of the laser cutter 2 through the control panel. After the system is started, the laser cutter 2 moves downward, and then the slide 303 is driven by the pressure plate 301 to slide on the fixed column 302 fixed inside the base of the laser cutter 2 (laser cutting is achieved by the drive component driving the base to move along the guide rail, and the laser cutter 2 itself can move horizontally on the base, and the cutting depth is adjusted by adjusting the upper and lower positions of the laser cutter 2 on the base). At the same time, the downward movement of the sliding frame 303 drives the fixed plate 5 fixedly connected to the bottom of the sliding frame 303 to move downward, and the cam 404 that is against the top of the lifting plate 405 moves downward together with the fixed plate 5, directly driving the surface parts of the lifting rod 406 to move downward as a whole, and finally making the bottom end of the shearing pin 801 connected in rotation in the fixed frame 6 contact with the upper surface of the aluminum profile. When the laser cutter 2 continues to move downward to the preset cutting depth, the laser cutter 2 stops moving downward, causing the sliding frame 303 connected through the pressure plate 301 to stop moving downward synchronously. At this time, the second spring 7 is in a compressed energy storage state, providing elastic potential energy for the subsequent shearing pin 801 to be embedded in the cutting seam.

[0050] Since the pressure plate 301 and the sliding frame 303 are plugged in, the sliding frame 303 will move in the vertical direction with the laser cutter 2. When the laser cutter 2 cuts the aluminum profile in a fixed path, the laser cutter 2 drives the sliding frame 303 to move synchronously in the horizontal direction through the tension of the torsion spring 9, thereby driving the multiple shearing pins 801 at the bottom of the sliding frame 303 to slide on the surface of the aluminum profile, and the bottom ends of the shearing pins 801 are all movably connected to the universal ball 803, which reduces the friction generated by the shearing pins 801 when moving on the surface of the aluminum profile, thereby preventing the surface of the aluminum profile from being damaged.

[0051] After the laser cutter 2 cuts a section of the path, the shearing pin 801 is pulled by the laser cutter 2 and moves to the initial cutting seam of the laser cutter 2. Since there are multiple shearing pins 801, the lower end of each shearing pin 801 is a tapered design with a narrow bottom and a wide top. As long as the conical surface of one of the shearing pins 801 contacts the edge of the cutting seam, the second spring 7 set between the fixing plate 5 and the fixing frame 6 can release its elastic potential energy and squeeze it into the cutting seam. Even if the position of the shearing pin 801 does not correspond to the cutting seam, since the shearing pins 801 are densely arranged, as long as the lower end of one of the shearing pins 801 contacts the edge of the cutting seam, the second spring 7 set between the fixing plate 5 and the fixing frame 6 can release its elastic potential energy and squeeze it into the cutting seam. The end can contact the gap, then when the shearing pin 801 is pressed down, it will be squeezed and pushed into the cutting gap and will be forced to be placed in its position in the gap to achieve a centering effect. When one of the shearing pins 801 moves into the cutting gap, the remaining shearing pins 801 still slide on the upper surface of the aluminum profile. The shearing pins 801 that are still sliding on the surface of the aluminum profile have the effect of stabilizing the movement of the sliding frame 303. Since the laser cutter 2 and the sliding frame 303 are elastically connected by the torsion spring 9, when the laser cutter 2 moves, the shearing pins 801 move synchronously along the cutting path inside the cutting gap.

[0052] When the cutting path is wavy (the base moves back and forth with the guide rail, and the laser cutter 2 moves on the base at the same time, and the wavy cutting is performed by cooperating with the base and the laser cutter 2), since the pressure plate 301 and the sliding frame 303 are plugged in, the protrusion on one side of the pressure plate 301 will move out of the plug-in slot 304 provided on the sliding frame 303, and then the sliding frame 303 is connected to the laser cutter 2 through the torsion spring 9 (due to the large elasticity of the torsion spring 9, when the pressure plate 301 slides out from the inside of the sliding frame 303, the vertical position of the sliding frame 303 can still be limited by the torsion spring 9). When the laser cutter 2 moves, the sliding frame 303 is pulled to move by the torsion spring 9. Since a plurality of shearing pins 801 are provided at the bottom of the sliding frame 303 (a plurality of shearing pins 801 make it possible to cut wavy shapes of different curvatures When the shearing needle 801 is already inside the cutting seam, the sliding frame 303 can rotate around the fixed column 302, and the sliding frame 303 can slide in the base (a sliding groove for sliding the sliding frame 303 is provided at the connection between the fixed column 302 and the sliding frame 303). When the sliding frame 303 is pulled to move in the wavy path by the torsion spring 9, the sliding frame 303 will adaptively rotate the angle and slide adaptively in the base, so that the shearing needle 801 moves along the cutting path of the laser cutter 2. During the movement, the torsion spring 9 can bend, and then the shearing needle 801 is rigidly pulled by the torsion spring 9 to move inside the arc-shaped cutting seam.

[0053] When the laser cutter 2 is started, the motor 401 is started at the same time, and the motor 401 drives the rotating shaft 403 to rotate through the belt 402, and then drives the cam 404 fixedly connected to its surface to rotate synchronously, and drives the lifting plate 405 and the lifting rod 406 at the bottom to perform lifting movement inside the fixed frame 6 through the cam 404. When the lifting rod 406 descends, since the lifting rod 406 is threadedly connected to the shearing pin 801, and the limiting ring of the fixing ring 804 fixedly connected to the outer wall of the shearing pin 801 is located inside the bottom end of the fixed frame 6, the fixing ring 804 is rotatably connected to the fixed frame 6, and the limiting ring of the fixing ring 804 makes the lifting rod 406 descend and drives The shearing needle 801 rotates forward inside the fixed frame 6, and when the lifting rod 406 rises, the lifting rod 406 is moved up along the guide rod 408 by the first spring 409, so that the shearing needle 801 is reversed, so that the shearing needle 801 performs alternating forward and reverse motion. The alternating forward and reverse motion can avoid the accumulation of debris and improve the efficiency of welding slag removal. In the process of rotation of the shearing needle 801, the groove 802 opened on the shearing needle 801 will contact the welding slag in the cutting seam of the aluminum profile. As the shearing needle 801 rotates, the cutting edge design of the groove 802 generates a shearing force during rotation, which is significantly better than the one-way grinding effect and can effectively scrape off the welding slag.

[0054] After the laser cutter 2 completes the first round of cutting, it continues to move along the original path to ensure that the shearing needle 801 can move along the complete grinding path (for example, when the cutting path is wavy, the laser cutter 2 continues to move along the original path after cutting is completed until the shearing needle 801 completely grinds the cut seam). When the shearing needle 801 moves the complete cutting path, the shearing needle 801 on the top of the cut waste is pressed down by the second spring 7, forcibly separating the cut waste and the base material to avoid adhesion.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser cutting machine for processing aluminum profiles, comprising a cutting machine body (1) and a laser cutter (2) for cutting aluminum profiles, characterized in that: It also includes a grinding unit for shearing the internal welding slag of the cutting seam produced by the laser cutter (2) when cutting the aluminum profile, a driving unit for driving the grinding unit to rotate periodically, and an adjusting unit for cooperating with the movement of the laser cutter (2) to adapt the grinding unit to different arc cutting seams and self-adaptively center the cutting seams, and a torsion spring (9) is provided between the adjusting unit and the laser cutter (2) to achieve the same path movement for cutting and grinding; The adjusting unit also includes a plurality of fixing frames (6), and a second spring (7) is provided between each fixing frame (6) and the adjusting unit; The adjustment unit comprises a pressing plate (301), the pressing plate (301) being fixedly connected to the outer wall of the cutter head of the laser cutter (2), the pressing plate (301) being plugged into the sliding frame (303) via a protrusion fixedly connected to one side of the pressing plate (301), and a plugging groove (304) being provided inside the sliding frame (303) for plugging into the protrusion fixed to the end of the pressing plate (301), a fixing column (302) being fixedly connected inside the base disc of the laser cutter (2), the fixing column (302) passing through the sliding frame (303), and one end of the sliding frame (303) being located inside the base disc of the laser cutter (2) and being slidably connected to the laser cutter (2), and the sliding frame (303) being provided with a sliding groove adapted to the fixing column (302); The driving unit comprises a motor (401) fixedly mounted on the top of a sliding frame (303); the bottom of the sliding frame (303) is fixedly connected to a fixed plate (5) via two connecting columns; a rotating shaft (403) is rotatably connected between the two connecting columns; an output shaft of the motor (401) and a surface of the rotating shaft (403) are fixedly connected to synchronous wheels; a belt (402) is movably connected between the two synchronous wheels; a plurality of cams (404) having the same number as the fixed frame (6) are uniformly fixed on the outer wall of the rotating shaft (403); a plurality of lifting rods (406) having the same number as the cams (404) are vertically slidably connected to the fixed plate (5); the top of each lifting rod (406) is fixedly connected to a lifting plate (405); and the outer wall of each lifting rod (406) is fixedly connected to a fixed frame (407); The fixed frame (6) is slidably connected to the surface of the lifting rod (406), and the fixed frame (407) is located inside the fixed frame (6). A guide rod (408) is connected to the inside of the fixed frame (407), and the top end of the guide rod (408) is fixedly connected to the upper surface of the inside of the fixed frame (6), and the bottom end of the guide rod (408) is fixedly connected to the lower surface of the inside of the fixed frame (6); The polishing unit includes a shearing needle (801), the shearing needle (801) is movably connected to the lifting rod (406) through a thread, the outer wall of the shearing needle (801) is evenly provided with a groove (802), the lower end of the shearing needle (801) is tapered and narrow at the bottom and wide at the top, and a universal ball (803) is rotatably mounted on the lower end of the shearing needle (801) and slides along the surface of the aluminum profile, the outer wall of the shearing needle (801) is fixedly connected to a fixing ring (804), and the fixing ring (804) is rotatably connected to the fixing frame (6); A second spring (7) is wound around the outer wall of the lifting rod (406), and one end of the second spring (7) is fixed to the lower surface of the fixed plate (5), and the other end of the second spring (7) is fixed to the upper surface of the fixed frame (6).

2. The laser cutting machine for aluminum profile processing according to claim 1, characterized in that: A first spring (409) is provided between the fixing frame (407) and the fixing frame (6), the first spring (409) being wound around the outer wall of the guide rod (408), one end of the first spring (409) being fixed to the bottom end of the fixing frame (407), and the other end of the first spring (409) being fixed to the inner lower surface of the fixing frame (6).

3. The laser cutting machine for aluminum profile processing according to claim 1, characterized in that: The outer wall of the fixing ring (804) is provided with a limiting ring located inside the bottom end of the fixing frame (6), and the fixing ring (804) and the fixing frame (6) are rotatably connected.

Images